Home / 1,041.02-1,561.50-310.60

Finding the Fourth Proportional to 1,041.02, 1,561.50 and 310.60

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Solution

The fourth proportional to 1,041.02, 1,561.50 and 310.60 is: 465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.02 : 1,561.50 = 310.60 : x
  2. Step 2: Convert to fraction form
    1,041.02/1,561.50 = 310.60/x
  3. Step 3: Cross multiply
    1,041.02x = 1,561.50 × 310.60
  4. Step 4: Simplify right side
    1,041.02x = 485,001.90
  5. Step 5: Solve for x
    x = 485,001.90/1,041.02
  6. Step 6: Final answer
    x = 465.89

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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.