Home / 1,400.68-2,109.18-1,038.04

Finding the Fourth Proportional to 1,400.68, 2,109.18 and 1,038.04

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Solution

The fourth proportional to 1,400.68, 2,109.18 and 1,038.04 is: 1,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.68 : 2,109.18 = 1,038.04 : x
  2. Step 2: Convert to fraction form
    1,400.68/2,109.18 = 1,038.04/x
  3. Step 3: Cross multiply
    1,400.68x = 2,109.18 × 1,038.04
  4. Step 4: Simplify right side
    1,400.68x = 2,189,413.21
  5. Step 5: Solve for x
    x = 2,189,413.21/1,400.68
  6. Step 6: Final answer
    x = 1,563.11

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.