Home / 1,529.76-2,109.60-1,365.60

Finding the Fourth Proportional to 1,529.76, 2,109.60 and 1,365.60

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Solution

The fourth proportional to 1,529.76, 2,109.60 and 1,365.60 is: 1,883.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.76 : 2,109.60 = 1,365.60 : x
  2. Step 2: Convert to fraction form
    1,529.76/2,109.60 = 1,365.60/x
  3. Step 3: Cross multiply
    1,529.76x = 2,109.60 × 1,365.60
  4. Step 4: Simplify right side
    1,529.76x = 2,880,869.76
  5. Step 5: Solve for x
    x = 2,880,869.76/1,529.76
  6. Step 6: Final answer
    x = 1,883.22

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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.