Home / 7,047.12-10,572.60-2,430.80

Finding the Fourth Proportional to 7,047.12, 10,572.60 and 2,430.80

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Solution

The fourth proportional to 7,047.12, 10,572.60 and 2,430.80 is: 3,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.12 : 10,572.60 = 2,430.80 : x
  2. Step 2: Convert to fraction form
    7,047.12/10,572.60 = 2,430.80/x
  3. Step 3: Cross multiply
    7,047.12x = 10,572.60 × 2,430.80
  4. Step 4: Simplify right side
    7,047.12x = 25,699,876.08
  5. Step 5: Solve for x
    x = 25,699,876.08/7,047.12
  6. Step 6: Final answer
    x = 3,646.86

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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.