Home / 5,646.12-8,457.71-3,423.62

Finding the Fourth Proportional to 5,646.12, 8,457.71 and 3,423.62

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Solution

The fourth proportional to 5,646.12, 8,457.71 and 3,423.62 is: 5,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,646.12 : 8,457.71 = 3,423.62 : x
  2. Step 2: Convert to fraction form
    5,646.12/8,457.71 = 3,423.62/x
  3. Step 3: Cross multiply
    5,646.12x = 8,457.71 × 3,423.62
  4. Step 4: Simplify right side
    5,646.12x = 28,955,925.70
  5. Step 5: Solve for x
    x = 28,955,925.70/5,646.12
  6. Step 6: Final answer
    x = 5,128.46

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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.