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Finding the Fourth Proportional to 1,898.25, 2,619.59 and 1,070.25

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Solution

The fourth proportional to 1,898.25, 2,619.59 and 1,070.25 is: 1,476.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.25 : 2,619.59 = 1,070.25 : x
  2. Step 2: Convert to fraction form
    1,898.25/2,619.59 = 1,070.25/x
  3. Step 3: Cross multiply
    1,898.25x = 2,619.59 × 1,070.25
  4. Step 4: Simplify right side
    1,898.25x = 2,803,616.20
  5. Step 5: Solve for x
    x = 2,803,616.20/1,898.25
  6. Step 6: Final answer
    x = 1,476.95

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1.5x scale

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.