Home / 2,521.32-3,479.43-1,402.35

Finding the Fourth Proportional to 2,521.32, 3,479.43 and 1,402.35

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Solution

The fourth proportional to 2,521.32, 3,479.43 and 1,402.35 is: 1,935.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.32 : 3,479.43 = 1,402.35 : x
  2. Step 2: Convert to fraction form
    2,521.32/3,479.43 = 1,402.35/x
  3. Step 3: Cross multiply
    2,521.32x = 3,479.43 × 1,402.35
  4. Step 4: Simplify right side
    2,521.32x = 4,879,378.66
  5. Step 5: Solve for x
    x = 4,879,378.66/2,521.32
  6. Step 6: Final answer
    x = 1,935.25

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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.