Home / 2,109,611.47-2,911,277.80-1,142,741.76

Finding the Fourth Proportional to 2,109,611.47, 2,911,277.80 and 1,142,741.76

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Solution

The fourth proportional to 2,109,611.47, 2,911,277.80 and 1,142,741.76 is: 1,576,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,611.47 : 2,911,277.80 = 1,142,741.76 : x
  2. Step 2: Convert to fraction form
    2,109,611.47/2,911,277.80 = 1,142,741.76/x
  3. Step 3: Cross multiply
    2,109,611.47x = 2,911,277.80 × 1,142,741.76
  4. Step 4: Simplify right side
    2,109,611.47x = 3,326,838,717,020.93
  5. Step 5: Solve for x
    x = 3,326,838,717,020.93/2,109,611.47
  6. Step 6: Final answer
    x = 1,576,991.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.