Home / 2,981.40-4,113.34-1,802.04

Finding the Fourth Proportional to 2,981.40, 4,113.34 and 1,802.04

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Solution

The fourth proportional to 2,981.40, 4,113.34 and 1,802.04 is: 2,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.40 : 4,113.34 = 1,802.04 : x
  2. Step 2: Convert to fraction form
    2,981.40/4,113.34 = 1,802.04/x
  3. Step 3: Cross multiply
    2,981.40x = 4,113.34 × 1,802.04
  4. Step 4: Simplify right side
    2,981.40x = 7,412,403.21
  5. Step 5: Solve for x
    x = 7,412,403.21/2,981.40
  6. Step 6: Final answer
    x = 2,486.22

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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.