Home / 4,190.30-6,281.45-1,557.10

Finding the Fourth Proportional to 4,190.30, 6,281.45 and 1,557.10

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Solution

The fourth proportional to 4,190.30, 6,281.45 and 1,557.10 is: 2,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.30 : 6,281.45 = 1,557.10 : x
  2. Step 2: Convert to fraction form
    4,190.30/6,281.45 = 1,557.10/x
  3. Step 3: Cross multiply
    4,190.30x = 6,281.45 × 1,557.10
  4. Step 4: Simplify right side
    4,190.30x = 9,780,845.80
  5. Step 5: Solve for x
    x = 9,780,845.80/4,190.30
  6. Step 6: Final answer
    x = 2,334.16

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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.