Home / 1,927.18-2,870.85-1,869.08

Finding the Fourth Proportional to 1,927.18, 2,870.85 and 1,869.08

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Solution

The fourth proportional to 1,927.18, 2,870.85 and 1,869.08 is: 2,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.18 : 2,870.85 = 1,869.08 : x
  2. Step 2: Convert to fraction form
    1,927.18/2,870.85 = 1,869.08/x
  3. Step 3: Cross multiply
    1,927.18x = 2,870.85 × 1,869.08
  4. Step 4: Simplify right side
    1,927.18x = 5,365,838.97
  5. Step 5: Solve for x
    x = 5,365,838.97/1,927.18
  6. Step 6: Final answer
    x = 2,784.30

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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.