Home / 2,197.38-3,030.96-1,312.50

Finding the Fourth Proportional to 2,197.38, 3,030.96 and 1,312.50

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Solution

The fourth proportional to 2,197.38, 3,030.96 and 1,312.50 is: 1,810.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,197.38 : 3,030.96 = 1,312.50 : x
  2. Step 2: Convert to fraction form
    2,197.38/3,030.96 = 1,312.50/x
  3. Step 3: Cross multiply
    2,197.38x = 3,030.96 × 1,312.50
  4. Step 4: Simplify right side
    2,197.38x = 3,978,135
  5. Step 5: Solve for x
    x = 3,978,135/2,197.38
  6. Step 6: Final answer
    x = 1,810.40

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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.