Home / 2,903.50-4,006.77-1,577.20

Finding the Fourth Proportional to 2,903.50, 4,006.77 and 1,577.20

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Solution

The fourth proportional to 2,903.50, 4,006.77 and 1,577.20 is: 2,176.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,903.50 : 4,006.77 = 1,577.20 : x
  2. Step 2: Convert to fraction form
    2,903.50/4,006.77 = 1,577.20/x
  3. Step 3: Cross multiply
    2,903.50x = 4,006.77 × 1,577.20
  4. Step 4: Simplify right side
    2,903.50x = 6,319,477.64
  5. Step 5: Solve for x
    x = 6,319,477.64/2,903.50
  6. Step 6: Final answer
    x = 2,176.50

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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.