Home / 2,140.02-3,209.73-580.13

Finding the Fourth Proportional to 2,140.02, 3,209.73 and 580.13

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Solution

The fourth proportional to 2,140.02, 3,209.73 and 580.13 is: 870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.02 : 3,209.73 = 580.13 : x
  2. Step 2: Convert to fraction form
    2,140.02/3,209.73 = 580.13/x
  3. Step 3: Cross multiply
    2,140.02x = 3,209.73 × 580.13
  4. Step 4: Simplify right side
    2,140.02x = 1,862,060.66
  5. Step 5: Solve for x
    x = 1,862,060.66/2,140.02
  6. Step 6: Final answer
    x = 870.11

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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.