Home / 1,533.55-2,113.27-1,090.21

Finding the Fourth Proportional to 1,533.55, 2,113.27 and 1,090.21

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Solution

The fourth proportional to 1,533.55, 2,113.27 and 1,090.21 is: 1,502.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.55 : 2,113.27 = 1,090.21 : x
  2. Step 2: Convert to fraction form
    1,533.55/2,113.27 = 1,090.21/x
  3. Step 3: Cross multiply
    1,533.55x = 2,113.27 × 1,090.21
  4. Step 4: Simplify right side
    1,533.55x = 2,303,908.09
  5. Step 5: Solve for x
    x = 2,303,908.09/1,533.55
  6. Step 6: Final answer
    x = 1,502.34

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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.