Home / 6,307.20-8,706.82-4,491.40

Finding the Fourth Proportional to 6,307.20, 8,706.82 and 4,491.40

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Solution

The fourth proportional to 6,307.20, 8,706.82 and 4,491.40 is: 6,200.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.20 : 8,706.82 = 4,491.40 : x
  2. Step 2: Convert to fraction form
    6,307.20/8,706.82 = 4,491.40/x
  3. Step 3: Cross multiply
    6,307.20x = 8,706.82 × 4,491.40
  4. Step 4: Simplify right side
    6,307.20x = 39,105,818.89
  5. Step 5: Solve for x
    x = 39,105,818.89/6,307.20
  6. Step 6: Final answer
    x = 6,200.18

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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.