Home / 1,877.58-2,818.80-1,145.34

Finding the Fourth Proportional to 1,877.58, 2,818.80 and 1,145.34

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Solution

The fourth proportional to 1,877.58, 2,818.80 and 1,145.34 is: 1,719.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.58 : 2,818.80 = 1,145.34 : x
  2. Step 2: Convert to fraction form
    1,877.58/2,818.80 = 1,145.34/x
  3. Step 3: Cross multiply
    1,877.58x = 2,818.80 × 1,145.34
  4. Step 4: Simplify right side
    1,877.58x = 3,228,484.39
  5. Step 5: Solve for x
    x = 3,228,484.39/1,877.58
  6. Step 6: Final answer
    x = 1,719.49

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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.