Home / 2,121.99-2,929.56-1,493.16

Finding the Fourth Proportional to 2,121.99, 2,929.56 and 1,493.16

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Solution

The fourth proportional to 2,121.99, 2,929.56 and 1,493.16 is: 2,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.99 : 2,929.56 = 1,493.16 : x
  2. Step 2: Convert to fraction form
    2,121.99/2,929.56 = 1,493.16/x
  3. Step 3: Cross multiply
    2,121.99x = 2,929.56 × 1,493.16
  4. Step 4: Simplify right side
    2,121.99x = 4,374,301.81
  5. Step 5: Solve for x
    x = 4,374,301.81/2,121.99
  6. Step 6: Final answer
    x = 2,061.41

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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.