Home / 1,563.04-2,154-1,120.15

Finding the Fourth Proportional to 1,563.04, 2,154 and 1,120.15

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Solution

The fourth proportional to 1,563.04, 2,154 and 1,120.15 is: 1,543.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.04 : 2,154 = 1,120.15 : x
  2. Step 2: Convert to fraction form
    1,563.04/2,154 = 1,120.15/x
  3. Step 3: Cross multiply
    1,563.04x = 2,154 × 1,120.15
  4. Step 4: Simplify right side
    1,563.04x = 2,412,803.10
  5. Step 5: Solve for x
    x = 2,412,803.10/1,563.04
  6. Step 6: Final answer
    x = 1,543.66

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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.