Home / 1,520.20-2,280.28-1,051.22

Finding the Fourth Proportional to 1,520.20, 2,280.28 and 1,051.22

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Solution

The fourth proportional to 1,520.20, 2,280.28 and 1,051.22 is: 1,576.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.20 : 2,280.28 = 1,051.22 : x
  2. Step 2: Convert to fraction form
    1,520.20/2,280.28 = 1,051.22/x
  3. Step 3: Cross multiply
    1,520.20x = 2,280.28 × 1,051.22
  4. Step 4: Simplify right side
    1,520.20x = 2,397,075.94
  5. Step 5: Solve for x
    x = 2,397,075.94/1,520.20
  6. Step 6: Final answer
    x = 1,576.82

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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.