Home / 2,128,711.87-2,937,172.62-1,354,060.68

Finding the Fourth Proportional to 2,128,711.87, 2,937,172.62 and 1,354,060.68

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Solution

The fourth proportional to 2,128,711.87, 2,937,172.62 and 1,354,060.68 is: 1,868,317.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,711.87 : 2,937,172.62 = 1,354,060.68 : x
  2. Step 2: Convert to fraction form
    2,128,711.87/2,937,172.62 = 1,354,060.68/x
  3. Step 3: Cross multiply
    2,128,711.87x = 2,937,172.62 × 1,354,060.68
  4. Step 4: Simplify right side
    2,128,711.87x = 3,977,109,955,114.58
  5. Step 5: Solve for x
    x = 3,977,109,955,114.58/2,128,711.87
  6. Step 6: Final answer
    x = 1,868,317.65

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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.