Home / 2,109,686.85-2,911,381.79-1,142,817.12

Finding the Fourth Proportional to 2,109,686.85, 2,911,381.79 and 1,142,817.12

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Solution

The fourth proportional to 2,109,686.85, 2,911,381.79 and 1,142,817.12 is: 1,577,095.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,686.85 : 2,911,381.79 = 1,142,817.12 : x
  2. Step 2: Convert to fraction form
    2,109,686.85/2,911,381.79 = 1,142,817.12/x
  3. Step 3: Cross multiply
    2,109,686.85x = 2,911,381.79 × 1,142,817.12
  4. Step 4: Simplify right side
    2,109,686.85x = 3,327,176,946,754.16
  5. Step 5: Solve for x
    x = 3,327,176,946,754.16/2,109,686.85
  6. Step 6: Final answer
    x = 1,577,095.17

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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.