Home / 2,753.30-4,130.40-904.19

Finding the Fourth Proportional to 2,753.30, 4,130.40 and 904.19

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Solution

The fourth proportional to 2,753.30, 4,130.40 and 904.19 is: 1,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,753.30 : 4,130.40 = 904.19 : x
  2. Step 2: Convert to fraction form
    2,753.30/4,130.40 = 904.19/x
  3. Step 3: Cross multiply
    2,753.30x = 4,130.40 × 904.19
  4. Step 4: Simplify right side
    2,753.30x = 3,734,666.38
  5. Step 5: Solve for x
    x = 3,734,666.38/2,753.30
  6. Step 6: Final answer
    x = 1,356.43

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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.