Home / 1,403.02-2,101.25-708.00

Finding the Fourth Proportional to 1,403.02, 2,101.25 and 708.00

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Solution

The fourth proportional to 1,403.02, 2,101.25 and 708.00 is: 1,060.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.02 : 2,101.25 = 708.00 : x
  2. Step 2: Convert to fraction form
    1,403.02/2,101.25 = 708.00/x
  3. Step 3: Cross multiply
    1,403.02x = 2,101.25 × 708.00
  4. Step 4: Simplify right side
    1,403.02x = 1,487,681.89
  5. Step 5: Solve for x
    x = 1,487,681.89/1,403.02
  6. Step 6: Final answer
    x = 1,060.34

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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.