Home / 1,461.04-2,189.50-637.60

Finding the Fourth Proportional to 1,461.04, 2,189.50 and 637.60

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Solution

The fourth proportional to 1,461.04, 2,189.50 and 637.60 is: 955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.04 : 2,189.50 = 637.60 : x
  2. Step 2: Convert to fraction form
    1,461.04/2,189.50 = 637.60/x
  3. Step 3: Cross multiply
    1,461.04x = 2,189.50 × 637.60
  4. Step 4: Simplify right side
    1,461.04x = 1,396,014.25
  5. Step 5: Solve for x
    x = 1,396,014.25/1,461.04
  6. Step 6: Final answer
    x = 955.50

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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.