Home / 3,521.98-5,281.35-1,574.20

Finding the Fourth Proportional to 3,521.98, 5,281.35 and 1,574.20

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Solution

The fourth proportional to 3,521.98, 5,281.35 and 1,574.20 is: 2,360.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.98 : 5,281.35 = 1,574.20 : x
  2. Step 2: Convert to fraction form
    3,521.98/5,281.35 = 1,574.20/x
  3. Step 3: Cross multiply
    3,521.98x = 5,281.35 × 1,574.20
  4. Step 4: Simplify right side
    3,521.98x = 8,313,901.17
  5. Step 5: Solve for x
    x = 8,313,901.17/3,521.98
  6. Step 6: Final answer
    x = 2,360.58

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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.