Home / 6,087.20-9,130.80-3,490.40

Finding the Fourth Proportional to 6,087.20, 9,130.80 and 3,490.40

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Solution

The fourth proportional to 6,087.20, 9,130.80 and 3,490.40 is: 5,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,087.20 : 9,130.80 = 3,490.40 : x
  2. Step 2: Convert to fraction form
    6,087.20/9,130.80 = 3,490.40/x
  3. Step 3: Cross multiply
    6,087.20x = 9,130.80 × 3,490.40
  4. Step 4: Simplify right side
    6,087.20x = 31,870,144.32
  5. Step 5: Solve for x
    x = 31,870,144.32/6,087.20
  6. Step 6: Final answer
    x = 5,235.60

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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.