Home / 1,397.13-1,931.64-1,335.93

Finding the Fourth Proportional to 1,397.13, 1,931.64 and 1,335.93

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Solution

The fourth proportional to 1,397.13, 1,931.64 and 1,335.93 is: 1,847.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397.13 : 1,931.64 = 1,335.93 : x
  2. Step 2: Convert to fraction form
    1,397.13/1,931.64 = 1,335.93/x
  3. Step 3: Cross multiply
    1,397.13x = 1,931.64 × 1,335.93
  4. Step 4: Simplify right side
    1,397.13x = 2,580,535.83
  5. Step 5: Solve for x
    x = 2,580,535.83/1,397.13
  6. Step 6: Final answer
    x = 1,847.03

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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.