Home / 1,055.36-1,582.94-325.10

Finding the Fourth Proportional to 1,055.36, 1,582.94 and 325.10

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Solution

The fourth proportional to 1,055.36, 1,582.94 and 325.10 is: 487.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,055.36 : 1,582.94 = 325.10 : x
  2. Step 2: Convert to fraction form
    1,055.36/1,582.94 = 325.10/x
  3. Step 3: Cross multiply
    1,055.36x = 1,582.94 × 325.10
  4. Step 4: Simplify right side
    1,055.36x = 514,613.79
  5. Step 5: Solve for x
    x = 514,613.79/1,055.36
  6. Step 6: Final answer
    x = 487.62

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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.