Home / 6,434.31-8,877.02-3,779.76

Finding the Fourth Proportional to 6,434.31, 8,877.02 and 3,779.76

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Solution

The fourth proportional to 6,434.31, 8,877.02 and 3,779.76 is: 5,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434.31 : 8,877.02 = 3,779.76 : x
  2. Step 2: Convert to fraction form
    6,434.31/8,877.02 = 3,779.76/x
  3. Step 3: Cross multiply
    6,434.31x = 8,877.02 × 3,779.76
  4. Step 4: Simplify right side
    6,434.31x = 33,552,986.22
  5. Step 5: Solve for x
    x = 33,552,986.22/6,434.31
  6. Step 6: Final answer
    x = 5,214.70

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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.