Home / 2,391.55-3,580.93-1,403.55

Finding the Fourth Proportional to 2,391.55, 3,580.93 and 1,403.55

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Solution

The fourth proportional to 2,391.55, 3,580.93 and 1,403.55 is: 2,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.55 : 3,580.93 = 1,403.55 : x
  2. Step 2: Convert to fraction form
    2,391.55/3,580.93 = 1,403.55/x
  3. Step 3: Cross multiply
    2,391.55x = 3,580.93 × 1,403.55
  4. Step 4: Simplify right side
    2,391.55x = 5,026,014.30
  5. Step 5: Solve for x
    x = 5,026,014.30/2,391.55
  6. Step 6: Final answer
    x = 2,101.57

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1.5x scale

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.