Home / 5,645.60-8,473.80-2,875.40

Finding the Fourth Proportional to 5,645.60, 8,473.80 and 2,875.40

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Solution

The fourth proportional to 5,645.60, 8,473.80 and 2,875.40 is: 4,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.60 : 8,473.80 = 2,875.40 : x
  2. Step 2: Convert to fraction form
    5,645.60/8,473.80 = 2,875.40/x
  3. Step 3: Cross multiply
    5,645.60x = 8,473.80 × 2,875.40
  4. Step 4: Simplify right side
    5,645.60x = 24,365,564.52
  5. Step 5: Solve for x
    x = 24,365,564.52/5,645.60
  6. Step 6: Final answer
    x = 4,315.85

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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.