Home / 1,579.85-2,368.92-525.20

Finding the Fourth Proportional to 1,579.85, 2,368.92 and 525.20

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Solution

The fourth proportional to 1,579.85, 2,368.92 and 525.20 is: 787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.85 : 2,368.92 = 525.20 : x
  2. Step 2: Convert to fraction form
    1,579.85/2,368.92 = 525.20/x
  3. Step 3: Cross multiply
    1,579.85x = 2,368.92 × 525.20
  4. Step 4: Simplify right side
    1,579.85x = 1,244,144.94
  5. Step 5: Solve for x
    x = 1,244,144.94/1,579.85
  6. Step 6: Final answer
    x = 787.51

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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.