Home / 1,878.30-2,592.02-1,038.98

Finding the Fourth Proportional to 1,878.30, 2,592.02 and 1,038.98

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Solution

The fourth proportional to 1,878.30, 2,592.02 and 1,038.98 is: 1,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.30 : 2,592.02 = 1,038.98 : x
  2. Step 2: Convert to fraction form
    1,878.30/2,592.02 = 1,038.98/x
  3. Step 3: Cross multiply
    1,878.30x = 2,592.02 × 1,038.98
  4. Step 4: Simplify right side
    1,878.30x = 2,693,056.94
  5. Step 5: Solve for x
    x = 2,693,056.94/1,878.30
  6. Step 6: Final answer
    x = 1,433.77

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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.