Home / 1,448.20-2,172.90-583.12

Finding the Fourth Proportional to 1,448.20, 2,172.90 and 583.12

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Solution

The fourth proportional to 1,448.20, 2,172.90 and 583.12 is: 874.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.20 : 2,172.90 = 583.12 : x
  2. Step 2: Convert to fraction form
    1,448.20/2,172.90 = 583.12/x
  3. Step 3: Cross multiply
    1,448.20x = 2,172.90 × 583.12
  4. Step 4: Simplify right side
    1,448.20x = 1,267,061.45
  5. Step 5: Solve for x
    x = 1,267,061.45/1,448.20
  6. Step 6: Final answer
    x = 874.92

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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.