Home / 2,390.16-3,585.47-929.43

Finding the Fourth Proportional to 2,390.16, 3,585.47 and 929.43

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Solution

The fourth proportional to 2,390.16, 3,585.47 and 929.43 is: 1,394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.16 : 3,585.47 = 929.43 : x
  2. Step 2: Convert to fraction form
    2,390.16/3,585.47 = 929.43/x
  3. Step 3: Cross multiply
    2,390.16x = 3,585.47 × 929.43
  4. Step 4: Simplify right side
    2,390.16x = 3,332,420.81
  5. Step 5: Solve for x
    x = 3,332,420.81/2,390.16
  6. Step 6: Final answer
    x = 1,394.22

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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.