Home / 2,088.42-3,130.20-1,678.02

Finding the Fourth Proportional to 2,088.42, 3,130.20 and 1,678.02

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Solution

The fourth proportional to 2,088.42, 3,130.20 and 1,678.02 is: 2,515.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.42 : 3,130.20 = 1,678.02 : x
  2. Step 2: Convert to fraction form
    2,088.42/3,130.20 = 1,678.02/x
  3. Step 3: Cross multiply
    2,088.42x = 3,130.20 × 1,678.02
  4. Step 4: Simplify right side
    2,088.42x = 5,252,538.20
  5. Step 5: Solve for x
    x = 5,252,538.20/2,088.42
  6. Step 6: Final answer
    x = 2,515.08

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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.