Home / 3,111.04-4,293.28-1,713.76

Finding the Fourth Proportional to 3,111.04, 4,293.28 and 1,713.76

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Solution

The fourth proportional to 3,111.04, 4,293.28 and 1,713.76 is: 2,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.04 : 4,293.28 = 1,713.76 : x
  2. Step 2: Convert to fraction form
    3,111.04/4,293.28 = 1,713.76/x
  3. Step 3: Cross multiply
    3,111.04x = 4,293.28 × 1,713.76
  4. Step 4: Simplify right side
    3,111.04x = 7,357,651.53
  5. Step 5: Solve for x
    x = 7,357,651.53/3,111.04
  6. Step 6: Final answer
    x = 2,365.01

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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.