Home / 1,897.76-2,619.08-1,101.38

Finding the Fourth Proportional to 1,897.76, 2,619.08 and 1,101.38

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Solution

The fourth proportional to 1,897.76, 2,619.08 and 1,101.38 is: 1,520.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897.76 : 2,619.08 = 1,101.38 : x
  2. Step 2: Convert to fraction form
    1,897.76/2,619.08 = 1,101.38/x
  3. Step 3: Cross multiply
    1,897.76x = 2,619.08 × 1,101.38
  4. Step 4: Simplify right side
    1,897.76x = 2,884,602.33
  5. Step 5: Solve for x
    x = 2,884,602.33/1,897.76
  6. Step 6: Final answer
    x = 1,520.00

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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.