Home / 1,678.01-2,314.64-1,088.55

Finding the Fourth Proportional to 1,678.01, 2,314.64 and 1,088.55

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Solution

The fourth proportional to 1,678.01, 2,314.64 and 1,088.55 is: 1,501.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.01 : 2,314.64 = 1,088.55 : x
  2. Step 2: Convert to fraction form
    1,678.01/2,314.64 = 1,088.55/x
  3. Step 3: Cross multiply
    1,678.01x = 2,314.64 × 1,088.55
  4. Step 4: Simplify right side
    1,678.01x = 2,519,604.09
  5. Step 5: Solve for x
    x = 2,519,604.09/1,678.01
  6. Step 6: Final answer
    x = 1,501.55

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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.