Home / 2,770.08-4,154.64-1,038.40

Finding the Fourth Proportional to 2,770.08, 4,154.64 and 1,038.40

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Solution

The fourth proportional to 2,770.08, 4,154.64 and 1,038.40 is: 1,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.08 : 4,154.64 = 1,038.40 : x
  2. Step 2: Convert to fraction form
    2,770.08/4,154.64 = 1,038.40/x
  3. Step 3: Cross multiply
    2,770.08x = 4,154.64 × 1,038.40
  4. Step 4: Simplify right side
    2,770.08x = 4,314,178.18
  5. Step 5: Solve for x
    x = 4,314,178.18/2,770.08
  6. Step 6: Final answer
    x = 1,557.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.