Home / 3,088.40-4,261.52-1,762.20

Finding the Fourth Proportional to 3,088.40, 4,261.52 and 1,762.20

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Solution

The fourth proportional to 3,088.40, 4,261.52 and 1,762.20 is: 2,431.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.40 : 4,261.52 = 1,762.20 : x
  2. Step 2: Convert to fraction form
    3,088.40/4,261.52 = 1,762.20/x
  3. Step 3: Cross multiply
    3,088.40x = 4,261.52 × 1,762.20
  4. Step 4: Simplify right side
    3,088.40x = 7,509,650.54
  5. Step 5: Solve for x
    x = 7,509,650.54/3,088.40
  6. Step 6: Final answer
    x = 2,431.57

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1.5x scale

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.