Home / 2,818.32-3,888.30-1,699.74

Finding the Fourth Proportional to 2,818.32, 3,888.30 and 1,699.74

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Solution

The fourth proportional to 2,818.32, 3,888.30 and 1,699.74 is: 2,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,818.32 : 3,888.30 = 1,699.74 : x
  2. Step 2: Convert to fraction form
    2,818.32/3,888.30 = 1,699.74/x
  3. Step 3: Cross multiply
    2,818.32x = 3,888.30 × 1,699.74
  4. Step 4: Simplify right side
    2,818.32x = 6,609,099.04
  5. Step 5: Solve for x
    x = 6,609,099.04/2,818.32
  6. Step 6: Final answer
    x = 2,345.05

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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.