Home / 2,787,985.56-3,847,486.40-1,564,381.61

Finding the Fourth Proportional to 2,787,985.56, 3,847,486.40 and 1,564,381.61

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Solution

The fourth proportional to 2,787,985.56, 3,847,486.40 and 1,564,381.61 is: 2,158,883.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787,985.56 : 3,847,486.40 = 1,564,381.61 : x
  2. Step 2: Convert to fraction form
    2,787,985.56/3,847,486.40 = 1,564,381.61/x
  3. Step 3: Cross multiply
    2,787,985.56x = 3,847,486.40 × 1,564,381.61
  4. Step 4: Simplify right side
    2,787,985.56x = 6,018,936,968,885.11
  5. Step 5: Solve for x
    x = 6,018,936,968,885.11/2,787,985.56
  6. Step 6: Final answer
    x = 2,158,883.84

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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.