Home / 4,047.12-5,587.56-2,931.72

Finding the Fourth Proportional to 4,047.12, 5,587.56 and 2,931.72

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Solution

The fourth proportional to 4,047.12, 5,587.56 and 2,931.72 is: 4,047.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,047.12 : 5,587.56 = 2,931.72 : x
  2. Step 2: Convert to fraction form
    4,047.12/5,587.56 = 2,931.72/x
  3. Step 3: Cross multiply
    4,047.12x = 5,587.56 × 2,931.72
  4. Step 4: Simplify right side
    4,047.12x = 16,381,161.40
  5. Step 5: Solve for x
    x = 16,381,161.40/4,047.12
  6. Step 6: Final answer
    x = 4,047.61

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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.