Home / 4,280.88-6,420.61-1,506.90

Finding the Fourth Proportional to 4,280.88, 6,420.61 and 1,506.90

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Solution

The fourth proportional to 4,280.88, 6,420.61 and 1,506.90 is: 2,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.88 : 6,420.61 = 1,506.90 : x
  2. Step 2: Convert to fraction form
    4,280.88/6,420.61 = 1,506.90/x
  3. Step 3: Cross multiply
    4,280.88x = 6,420.61 × 1,506.90
  4. Step 4: Simplify right side
    4,280.88x = 9,675,243.17
  5. Step 5: Solve for x
    x = 9,675,243.17/4,280.88
  6. Step 6: Final answer
    x = 2,260.10

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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.