Home / 1,400.53-2,088.44-1,388.04

Finding the Fourth Proportional to 1,400.53, 2,088.44 and 1,388.04

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Solution

The fourth proportional to 1,400.53, 2,088.44 and 1,388.04 is: 2,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.53 : 2,088.44 = 1,388.04 : x
  2. Step 2: Convert to fraction form
    1,400.53/2,088.44 = 1,388.04/x
  3. Step 3: Cross multiply
    1,400.53x = 2,088.44 × 1,388.04
  4. Step 4: Simplify right side
    1,400.53x = 2,898,838.26
  5. Step 5: Solve for x
    x = 2,898,838.26/1,400.53
  6. Step 6: Final answer
    x = 2,069.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.