Home / 6,555.40-9,040.50-4,316.45

Finding the Fourth Proportional to 6,555.40, 9,040.50 and 4,316.45

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Solution

The fourth proportional to 6,555.40, 9,040.50 and 4,316.45 is: 5,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.40 : 9,040.50 = 4,316.45 : x
  2. Step 2: Convert to fraction form
    6,555.40/9,040.50 = 4,316.45/x
  3. Step 3: Cross multiply
    6,555.40x = 9,040.50 × 4,316.45
  4. Step 4: Simplify right side
    6,555.40x = 39,022,821.02
  5. Step 5: Solve for x
    x = 39,022,821.02/6,555.40
  6. Step 6: Final answer
    x = 5,952.78

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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.