Home / 3,897,506.80-5,378,325.18-2,155,071.96

Finding the Fourth Proportional to 3,897,506.80, 5,378,325.18 and 2,155,071.96

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Solution

The fourth proportional to 3,897,506.80, 5,378,325.18 and 2,155,071.96 is: 2,973,869.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897,506.80 : 5,378,325.18 = 2,155,071.96 : x
  2. Step 2: Convert to fraction form
    3,897,506.80/5,378,325.18 = 2,155,071.96/x
  3. Step 3: Cross multiply
    3,897,506.80x = 5,378,325.18 × 2,155,071.96
  4. Step 4: Simplify right side
    3,897,506.80x = 11,590,677,779,098.43
  5. Step 5: Solve for x
    x = 11,590,677,779,098.43/3,897,506.80
  6. Step 6: Final answer
    x = 2,973,869.80

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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.