Home / 3,521.40-5,306.33-2,918.67

Finding the Fourth Proportional to 3,521.40, 5,306.33 and 2,918.67

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Solution

The fourth proportional to 3,521.40, 5,306.33 and 2,918.67 is: 4,398.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.40 : 5,306.33 = 2,918.67 : x
  2. Step 2: Convert to fraction form
    3,521.40/5,306.33 = 2,918.67/x
  3. Step 3: Cross multiply
    3,521.40x = 5,306.33 × 2,918.67
  4. Step 4: Simplify right side
    3,521.40x = 15,487,411.59
  5. Step 5: Solve for x
    x = 15,487,411.59/3,521.40
  6. Step 6: Final answer
    x = 4,398.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.