Home / 2,931.12-4,046.04-2,124.66

Finding the Fourth Proportional to 2,931.12, 4,046.04 and 2,124.66

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Solution

The fourth proportional to 2,931.12, 4,046.04 and 2,124.66 is: 2,932.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.12 : 4,046.04 = 2,124.66 : x
  2. Step 2: Convert to fraction form
    2,931.12/4,046.04 = 2,124.66/x
  3. Step 3: Cross multiply
    2,931.12x = 4,046.04 × 2,124.66
  4. Step 4: Simplify right side
    2,931.12x = 8,596,459.35
  5. Step 5: Solve for x
    x = 8,596,459.35/2,931.12
  6. Step 6: Final answer
    x = 2,932.82

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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.