Home / 2,521.77-3,479.96-1,402.70

Finding the Fourth Proportional to 2,521.77, 3,479.96 and 1,402.70

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Solution

The fourth proportional to 2,521.77, 3,479.96 and 1,402.70 is: 1,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.77 : 3,479.96 = 1,402.70 : x
  2. Step 2: Convert to fraction form
    2,521.77/3,479.96 = 1,402.70/x
  3. Step 3: Cross multiply
    2,521.77x = 3,479.96 × 1,402.70
  4. Step 4: Simplify right side
    2,521.77x = 4,881,315.48
  5. Step 5: Solve for x
    x = 4,881,315.48/2,521.77
  6. Step 6: Final answer
    x = 1,935.67

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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.