Home / 2,121,122.76-2,927,211.01-1,154,315.40

Finding the Fourth Proportional to 2,121,122.76, 2,927,211.01 and 1,154,315.40

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Solution

The fourth proportional to 2,121,122.76, 2,927,211.01 and 1,154,315.40 is: 1,592,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,122.76 : 2,927,211.01 = 1,154,315.40 : x
  2. Step 2: Convert to fraction form
    2,121,122.76/2,927,211.01 = 1,154,315.40/x
  3. Step 3: Cross multiply
    2,121,122.76x = 2,927,211.01 × 1,154,315.40
  4. Step 4: Simplify right side
    2,121,122.76x = 3,378,924,742,120.98
  5. Step 5: Solve for x
    x = 3,378,924,742,120.98/2,121,122.76
  6. Step 6: Final answer
    x = 1,592,988.77

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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.