Home / 1,476.84-2,038.50-1,428.20

Finding the Fourth Proportional to 1,476.84, 2,038.50 and 1,428.20

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Solution

The fourth proportional to 1,476.84, 2,038.50 and 1,428.20 is: 1,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476.84 : 2,038.50 = 1,428.20 : x
  2. Step 2: Convert to fraction form
    1,476.84/2,038.50 = 1,428.20/x
  3. Step 3: Cross multiply
    1,476.84x = 2,038.50 × 1,428.20
  4. Step 4: Simplify right side
    1,476.84x = 2,911,385.70
  5. Step 5: Solve for x
    x = 2,911,385.70/1,476.84
  6. Step 6: Final answer
    x = 1,971.36

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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.