Home / 6,461.02-9,689.79-1,779.91

Finding the Fourth Proportional to 6,461.02, 9,689.79 and 1,779.91

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Solution

The fourth proportional to 6,461.02, 9,689.79 and 1,779.91 is: 2,669.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.02 : 9,689.79 = 1,779.91 : x
  2. Step 2: Convert to fraction form
    6,461.02/9,689.79 = 1,779.91/x
  3. Step 3: Cross multiply
    6,461.02x = 9,689.79 × 1,779.91
  4. Step 4: Simplify right side
    6,461.02x = 17,246,973.69
  5. Step 5: Solve for x
    x = 17,246,973.69/6,461.02
  6. Step 6: Final answer
    x = 2,669.39

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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.