Home / 7,280.12-10,045.40-4,446.74

Finding the Fourth Proportional to 7,280.12, 10,045.40 and 4,446.74

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Solution

The fourth proportional to 7,280.12, 10,045.40 and 4,446.74 is: 6,135.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280.12 : 10,045.40 = 4,446.74 : x
  2. Step 2: Convert to fraction form
    7,280.12/10,045.40 = 4,446.74/x
  3. Step 3: Cross multiply
    7,280.12x = 10,045.40 × 4,446.74
  4. Step 4: Simplify right side
    7,280.12x = 44,669,282.00
  5. Step 5: Solve for x
    x = 44,669,282.00/7,280.12
  6. Step 6: Final answer
    x = 6,135.79

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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.