Home / 5,612.16-8,420.06-2,690.70

Finding the Fourth Proportional to 5,612.16, 8,420.06 and 2,690.70

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Solution

The fourth proportional to 5,612.16, 8,420.06 and 2,690.70 is: 4,036.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.16 : 8,420.06 = 2,690.70 : x
  2. Step 2: Convert to fraction form
    5,612.16/8,420.06 = 2,690.70/x
  3. Step 3: Cross multiply
    5,612.16x = 8,420.06 × 2,690.70
  4. Step 4: Simplify right side
    5,612.16x = 22,655,855.44
  5. Step 5: Solve for x
    x = 22,655,855.44/5,612.16
  6. Step 6: Final answer
    x = 4,036.92

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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.