Home / 3,345.18-4,615.47-2,018.88

Finding the Fourth Proportional to 3,345.18, 4,615.47 and 2,018.88

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Solution

The fourth proportional to 3,345.18, 4,615.47 and 2,018.88 is: 2,785.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.18 : 4,615.47 = 2,018.88 : x
  2. Step 2: Convert to fraction form
    3,345.18/4,615.47 = 2,018.88/x
  3. Step 3: Cross multiply
    3,345.18x = 4,615.47 × 2,018.88
  4. Step 4: Simplify right side
    3,345.18x = 9,318,080.07
  5. Step 5: Solve for x
    x = 9,318,080.07/3,345.18
  6. Step 6: Final answer
    x = 2,785.52

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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.