Home / 7,280.58-10,920.76-4,153.91

Finding the Fourth Proportional to 7,280.58, 10,920.76 and 4,153.91

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Solution

The fourth proportional to 7,280.58, 10,920.76 and 4,153.91 is: 6,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.58 : 10,920.76 = 4,153.91 : x
  2. Step 2: Convert to fraction form
    7,280.58/10,920.76 = 4,153.91/x
  3. Step 3: Cross multiply
    7,280.58x = 10,920.76 × 4,153.91
  4. Step 4: Simplify right side
    7,280.58x = 45,363,854.17
  5. Step 5: Solve for x
    x = 45,363,854.17/7,280.58
  6. Step 6: Final answer
    x = 6,230.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.