Home / 2,927.79-4,038.22-1,864.50

Finding the Fourth Proportional to 2,927.79, 4,038.22 and 1,864.50

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Solution

The fourth proportional to 2,927.79, 4,038.22 and 1,864.50 is: 2,571.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.79 : 4,038.22 = 1,864.50 : x
  2. Step 2: Convert to fraction form
    2,927.79/4,038.22 = 1,864.50/x
  3. Step 3: Cross multiply
    2,927.79x = 4,038.22 × 1,864.50
  4. Step 4: Simplify right side
    2,927.79x = 7,529,261.19
  5. Step 5: Solve for x
    x = 7,529,261.19/2,927.79
  6. Step 6: Final answer
    x = 2,571.65

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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.