Home / 2,125.23-2,931.62-1,337.91

Finding the Fourth Proportional to 2,125.23, 2,931.62 and 1,337.91

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Solution

The fourth proportional to 2,125.23, 2,931.62 and 1,337.91 is: 1,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.23 : 2,931.62 = 1,337.91 : x
  2. Step 2: Convert to fraction form
    2,125.23/2,931.62 = 1,337.91/x
  3. Step 3: Cross multiply
    2,125.23x = 2,931.62 × 1,337.91
  4. Step 4: Simplify right side
    2,125.23x = 3,922,243.71
  5. Step 5: Solve for x
    x = 3,922,243.71/2,125.23
  6. Step 6: Final answer
    x = 1,845.56

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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.