Home / 2,521.48-3,479.70-1,402.48

Finding the Fourth Proportional to 2,521.48, 3,479.70 and 1,402.48

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Solution

The fourth proportional to 2,521.48, 3,479.70 and 1,402.48 is: 1,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.48 : 3,479.70 = 1,402.48 : x
  2. Step 2: Convert to fraction form
    2,521.48/3,479.70 = 1,402.48/x
  3. Step 3: Cross multiply
    2,521.48x = 3,479.70 × 1,402.48
  4. Step 4: Simplify right side
    2,521.48x = 4,880,209.66
  5. Step 5: Solve for x
    x = 4,880,209.66/2,521.48
  6. Step 6: Final answer
    x = 1,935.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.