Home / 3,124.53-4,314.35-1,931.24

Finding the Fourth Proportional to 3,124.53, 4,314.35 and 1,931.24

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Solution

The fourth proportional to 3,124.53, 4,314.35 and 1,931.24 is: 2,666.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.53 : 4,314.35 = 1,931.24 : x
  2. Step 2: Convert to fraction form
    3,124.53/4,314.35 = 1,931.24/x
  3. Step 3: Cross multiply
    3,124.53x = 4,314.35 × 1,931.24
  4. Step 4: Simplify right side
    3,124.53x = 8,332,060.91
  5. Step 5: Solve for x
    x = 8,332,060.91/3,124.53
  6. Step 6: Final answer
    x = 2,666.66

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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.