Home / 5,275.55-7,280.70-3,038.15

Finding the Fourth Proportional to 5,275.55, 7,280.70 and 3,038.15

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Solution

The fourth proportional to 5,275.55, 7,280.70 and 3,038.15 is: 4,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.55 : 7,280.70 = 3,038.15 : x
  2. Step 2: Convert to fraction form
    5,275.55/7,280.70 = 3,038.15/x
  3. Step 3: Cross multiply
    5,275.55x = 7,280.70 × 3,038.15
  4. Step 4: Simplify right side
    5,275.55x = 22,119,858.71
  5. Step 5: Solve for x
    x = 22,119,858.71/5,275.55
  6. Step 6: Final answer
    x = 4,192.90

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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.