Home / 1,948.67-2,904.96-1,918.70

Finding the Fourth Proportional to 1,948.67, 2,904.96 and 1,918.70

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Solution

The fourth proportional to 1,948.67, 2,904.96 and 1,918.70 is: 2,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.67 : 2,904.96 = 1,918.70 : x
  2. Step 2: Convert to fraction form
    1,948.67/2,904.96 = 1,918.70/x
  3. Step 3: Cross multiply
    1,948.67x = 2,904.96 × 1,918.70
  4. Step 4: Simplify right side
    1,948.67x = 5,573,746.75
  5. Step 5: Solve for x
    x = 5,573,746.75/1,948.67
  6. Step 6: Final answer
    x = 2,860.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.