Home / 2,269.28-3,130.32-1,561.04

Finding the Fourth Proportional to 2,269.28, 3,130.32 and 1,561.04

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Solution

The fourth proportional to 2,269.28, 3,130.32 and 1,561.04 is: 2,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.28 : 3,130.32 = 1,561.04 : x
  2. Step 2: Convert to fraction form
    2,269.28/3,130.32 = 1,561.04/x
  3. Step 3: Cross multiply
    2,269.28x = 3,130.32 × 1,561.04
  4. Step 4: Simplify right side
    2,269.28x = 4,886,554.73
  5. Step 5: Solve for x
    x = 4,886,554.73/2,269.28
  6. Step 6: Final answer
    x = 2,153.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.