Home / 2,918.01-4,026.89-1,591.70

Finding the Fourth Proportional to 2,918.01, 4,026.89 and 1,591.70

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Solution

The fourth proportional to 2,918.01, 4,026.89 and 1,591.70 is: 2,196.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.01 : 4,026.89 = 1,591.70 : x
  2. Step 2: Convert to fraction form
    2,918.01/4,026.89 = 1,591.70/x
  3. Step 3: Cross multiply
    2,918.01x = 4,026.89 × 1,591.70
  4. Step 4: Simplify right side
    2,918.01x = 6,409,600.81
  5. Step 5: Solve for x
    x = 6,409,600.81/2,918.01
  6. Step 6: Final answer
    x = 2,196.57

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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.