Home / 2,931.04-4,398.18-1,761.40

Finding the Fourth Proportional to 2,931.04, 4,398.18 and 1,761.40

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Solution

The fourth proportional to 2,931.04, 4,398.18 and 1,761.40 is: 2,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.04 : 4,398.18 = 1,761.40 : x
  2. Step 2: Convert to fraction form
    2,931.04/4,398.18 = 1,761.40/x
  3. Step 3: Cross multiply
    2,931.04x = 4,398.18 × 1,761.40
  4. Step 4: Simplify right side
    2,931.04x = 7,746,954.25
  5. Step 5: Solve for x
    x = 7,746,954.25/2,931.04
  6. Step 6: Final answer
    x = 2,643.07

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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.