Home / 5,639.30-8,461.59-2,519.01

Finding the Fourth Proportional to 5,639.30, 8,461.59 and 2,519.01

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Solution

The fourth proportional to 5,639.30, 8,461.59 and 2,519.01 is: 3,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.30 : 8,461.59 = 2,519.01 : x
  2. Step 2: Convert to fraction form
    5,639.30/8,461.59 = 2,519.01/x
  3. Step 3: Cross multiply
    5,639.30x = 8,461.59 × 2,519.01
  4. Step 4: Simplify right side
    5,639.30x = 21,314,829.83
  5. Step 5: Solve for x
    x = 21,314,829.83/5,639.30
  6. Step 6: Final answer
    x = 3,779.70

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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.