Home / 3,528.99-4,870.14-1,935.78

Finding the Fourth Proportional to 3,528.99, 4,870.14 and 1,935.78

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Solution

The fourth proportional to 3,528.99, 4,870.14 and 1,935.78 is: 2,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.99 : 4,870.14 = 1,935.78 : x
  2. Step 2: Convert to fraction form
    3,528.99/4,870.14 = 1,935.78/x
  3. Step 3: Cross multiply
    3,528.99x = 4,870.14 × 1,935.78
  4. Step 4: Simplify right side
    3,528.99x = 9,427,519.61
  5. Step 5: Solve for x
    x = 9,427,519.61/3,528.99
  6. Step 6: Final answer
    x = 2,671.45

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Half scale
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Double scale
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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.