Home / 1,931.93-2,898.13-615.23

Finding the Fourth Proportional to 1,931.93, 2,898.13 and 615.23

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Solution

The fourth proportional to 1,931.93, 2,898.13 and 615.23 is: 922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.93 : 2,898.13 = 615.23 : x
  2. Step 2: Convert to fraction form
    1,931.93/2,898.13 = 615.23/x
  3. Step 3: Cross multiply
    1,931.93x = 2,898.13 × 615.23
  4. Step 4: Simplify right side
    1,931.93x = 1,783,007.08
  5. Step 5: Solve for x
    x = 1,783,007.08/1,931.93
  6. Step 6: Final answer
    x = 922.91

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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.