Home / 1,790.99-2,688.67-1,011.53

Finding the Fourth Proportional to 1,790.99, 2,688.67 and 1,011.53

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Solution

The fourth proportional to 1,790.99, 2,688.67 and 1,011.53 is: 1,518.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.99 : 2,688.67 = 1,011.53 : x
  2. Step 2: Convert to fraction form
    1,790.99/2,688.67 = 1,011.53/x
  3. Step 3: Cross multiply
    1,790.99x = 2,688.67 × 1,011.53
  4. Step 4: Simplify right side
    1,790.99x = 2,719,681.97
  5. Step 5: Solve for x
    x = 2,719,681.97/1,790.99
  6. Step 6: Final answer
    x = 1,518.54

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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.