Home / 2,521.84-3,479.87-1,402.60

Finding the Fourth Proportional to 2,521.84, 3,479.87 and 1,402.60

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Solution

The fourth proportional to 2,521.84, 3,479.87 and 1,402.60 is: 1,935.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.84 : 3,479.87 = 1,402.60 : x
  2. Step 2: Convert to fraction form
    2,521.84/3,479.87 = 1,402.60/x
  3. Step 3: Cross multiply
    2,521.84x = 3,479.87 × 1,402.60
  4. Step 4: Simplify right side
    2,521.84x = 4,880,865.66
  5. Step 5: Solve for x
    x = 4,880,865.66/2,521.84
  6. Step 6: Final answer
    x = 1,935.44

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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.