Home / 6,430.48-8,875.56-3,636.88

Finding the Fourth Proportional to 6,430.48, 8,875.56 and 3,636.88

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Solution

The fourth proportional to 6,430.48, 8,875.56 and 3,636.88 is: 5,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.48 : 8,875.56 = 3,636.88 : x
  2. Step 2: Convert to fraction form
    6,430.48/8,875.56 = 3,636.88/x
  3. Step 3: Cross multiply
    6,430.48x = 8,875.56 × 3,636.88
  4. Step 4: Simplify right side
    6,430.48x = 32,279,346.65
  5. Step 5: Solve for x
    x = 32,279,346.65/6,430.48
  6. Step 6: Final answer
    x = 5,019.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.