Home / 3,139.32-4,332.04-1,742.16

Finding the Fourth Proportional to 3,139.32, 4,332.04 and 1,742.16

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Solution

The fourth proportional to 3,139.32, 4,332.04 and 1,742.16 is: 2,404.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.32 : 4,332.04 = 1,742.16 : x
  2. Step 2: Convert to fraction form
    3,139.32/4,332.04 = 1,742.16/x
  3. Step 3: Cross multiply
    3,139.32x = 4,332.04 × 1,742.16
  4. Step 4: Simplify right side
    3,139.32x = 7,547,106.81
  5. Step 5: Solve for x
    x = 7,547,106.81/3,139.32
  6. Step 6: Final answer
    x = 2,404.06

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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.