Home / 1,609.65-2,220.93-1,113.30

Finding the Fourth Proportional to 1,609.65, 2,220.93 and 1,113.30

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Solution

The fourth proportional to 1,609.65, 2,220.93 and 1,113.30 is: 1,536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.65 : 2,220.93 = 1,113.30 : x
  2. Step 2: Convert to fraction form
    1,609.65/2,220.93 = 1,113.30/x
  3. Step 3: Cross multiply
    1,609.65x = 2,220.93 × 1,113.30
  4. Step 4: Simplify right side
    1,609.65x = 2,472,561.37
  5. Step 5: Solve for x
    x = 2,472,561.37/1,609.65
  6. Step 6: Final answer
    x = 1,536.09

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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.