Home / 3,248.90-4,870.15-1,605.70

Finding the Fourth Proportional to 3,248.90, 4,870.15 and 1,605.70

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Solution

The fourth proportional to 3,248.90, 4,870.15 and 1,605.70 is: 2,406.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,248.90 : 4,870.15 = 1,605.70 : x
  2. Step 2: Convert to fraction form
    3,248.90/4,870.15 = 1,605.70/x
  3. Step 3: Cross multiply
    3,248.90x = 4,870.15 × 1,605.70
  4. Step 4: Simplify right side
    3,248.90x = 7,819,999.86
  5. Step 5: Solve for x
    x = 7,819,999.86/3,248.90
  6. Step 6: Final answer
    x = 2,406.97

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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.