Home / 1,533.20-2,113.38-1,406.07

Finding the Fourth Proportional to 1,533.20, 2,113.38 and 1,406.07

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Solution

The fourth proportional to 1,533.20, 2,113.38 and 1,406.07 is: 1,938.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.20 : 2,113.38 = 1,406.07 : x
  2. Step 2: Convert to fraction form
    1,533.20/2,113.38 = 1,406.07/x
  3. Step 3: Cross multiply
    1,533.20x = 2,113.38 × 1,406.07
  4. Step 4: Simplify right side
    1,533.20x = 2,971,560.22
  5. Step 5: Solve for x
    x = 2,971,560.22/1,533.20
  6. Step 6: Final answer
    x = 1,938.15

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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.