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Finding the Fourth Proportional to 1,522.90, 2,281.41 and 907.10

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Solution

The fourth proportional to 1,522.90, 2,281.41 and 907.10 is: 1,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522.90 : 2,281.41 = 907.10 : x
  2. Step 2: Convert to fraction form
    1,522.90/2,281.41 = 907.10/x
  3. Step 3: Cross multiply
    1,522.90x = 2,281.41 × 907.10
  4. Step 4: Simplify right side
    1,522.90x = 2,069,467.01
  5. Step 5: Solve for x
    x = 2,069,467.01/1,522.90
  6. Step 6: Final answer
    x = 1,358.90

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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.