Home / 2,938.60-4,055.58-1,877.33

Finding the Fourth Proportional to 2,938.60, 4,055.58 and 1,877.33

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Solution

The fourth proportional to 2,938.60, 4,055.58 and 1,877.33 is: 2,590.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.60 : 4,055.58 = 1,877.33 : x
  2. Step 2: Convert to fraction form
    2,938.60/4,055.58 = 1,877.33/x
  3. Step 3: Cross multiply
    2,938.60x = 4,055.58 × 1,877.33
  4. Step 4: Simplify right side
    2,938.60x = 7,613,662.00
  5. Step 5: Solve for x
    x = 7,613,662.00/2,938.60
  6. Step 6: Final answer
    x = 2,590.92

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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.