Home / 7,417.81-11,126.42-1,871.08

Finding the Fourth Proportional to 7,417.81, 11,126.42 and 1,871.08

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Solution

The fourth proportional to 7,417.81, 11,126.42 and 1,871.08 is: 2,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,417.81 : 11,126.42 = 1,871.08 : x
  2. Step 2: Convert to fraction form
    7,417.81/11,126.42 = 1,871.08/x
  3. Step 3: Cross multiply
    7,417.81x = 11,126.42 × 1,871.08
  4. Step 4: Simplify right side
    7,417.81x = 20,818,366.30
  5. Step 5: Solve for x
    x = 20,818,366.30/7,417.81
  6. Step 6: Final answer
    x = 2,806.54

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.