Home / 1,877.19-2,588.84-1,213.35

Finding the Fourth Proportional to 1,877.19, 2,588.84 and 1,213.35

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Solution

The fourth proportional to 1,877.19, 2,588.84 and 1,213.35 is: 1,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.19 : 2,588.84 = 1,213.35 : x
  2. Step 2: Convert to fraction form
    1,877.19/2,588.84 = 1,213.35/x
  3. Step 3: Cross multiply
    1,877.19x = 2,588.84 × 1,213.35
  4. Step 4: Simplify right side
    1,877.19x = 3,141,169.01
  5. Step 5: Solve for x
    x = 3,141,169.01/1,877.19
  6. Step 6: Final answer
    x = 1,673.34

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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.