Home / 1,460.90-2,191.19-421.00

Finding the Fourth Proportional to 1,460.90, 2,191.19 and 421.00

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Solution

The fourth proportional to 1,460.90, 2,191.19 and 421.00 is: 631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.90 : 2,191.19 = 421.00 : x
  2. Step 2: Convert to fraction form
    1,460.90/2,191.19 = 421.00/x
  3. Step 3: Cross multiply
    1,460.90x = 2,191.19 × 421.00
  4. Step 4: Simplify right side
    1,460.90x = 922,483.41
  5. Step 5: Solve for x
    x = 922,483.41/1,460.90
  6. Step 6: Final answer
    x = 631.45

Related Problems

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.