Home / 1,482.18-2,223.27-870.15

Finding the Fourth Proportional to 1,482.18, 2,223.27 and 870.15

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Solution

The fourth proportional to 1,482.18, 2,223.27 and 870.15 is: 1,305.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.18 : 2,223.27 = 870.15 : x
  2. Step 2: Convert to fraction form
    1,482.18/2,223.27 = 870.15/x
  3. Step 3: Cross multiply
    1,482.18x = 2,223.27 × 870.15
  4. Step 4: Simplify right side
    1,482.18x = 1,934,578.39
  5. Step 5: Solve for x
    x = 1,934,578.39/1,482.18
  6. Step 6: Final answer
    x = 1,305.23

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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.