Home / 1,816.78-2,506.93-1,020.14

Finding the Fourth Proportional to 1,816.78, 2,506.93 and 1,020.14

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Solution

The fourth proportional to 1,816.78, 2,506.93 and 1,020.14 is: 1,407.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.78 : 2,506.93 = 1,020.14 : x
  2. Step 2: Convert to fraction form
    1,816.78/2,506.93 = 1,020.14/x
  3. Step 3: Cross multiply
    1,816.78x = 2,506.93 × 1,020.14
  4. Step 4: Simplify right side
    1,816.78x = 2,557,419.57
  5. Step 5: Solve for x
    x = 2,557,419.57/1,816.78
  6. Step 6: Final answer
    x = 1,407.67

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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.