Home / 2,689.98-4,030.40-1,303.96

Finding the Fourth Proportional to 2,689.98, 4,030.40 and 1,303.96

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Solution

The fourth proportional to 2,689.98, 4,030.40 and 1,303.96 is: 1,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.98 : 4,030.40 = 1,303.96 : x
  2. Step 2: Convert to fraction form
    2,689.98/4,030.40 = 1,303.96/x
  3. Step 3: Cross multiply
    2,689.98x = 4,030.40 × 1,303.96
  4. Step 4: Simplify right side
    2,689.98x = 5,255,480.38
  5. Step 5: Solve for x
    x = 5,255,480.38/2,689.98
  6. Step 6: Final answer
    x = 1,953.72

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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.