Home / 2,014.79-2,782.53-1,386.94

Finding the Fourth Proportional to 2,014.79, 2,782.53 and 1,386.94

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Solution

The fourth proportional to 2,014.79, 2,782.53 and 1,386.94 is: 1,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.79 : 2,782.53 = 1,386.94 : x
  2. Step 2: Convert to fraction form
    2,014.79/2,782.53 = 1,386.94/x
  3. Step 3: Cross multiply
    2,014.79x = 2,782.53 × 1,386.94
  4. Step 4: Simplify right side
    2,014.79x = 3,859,195.22
  5. Step 5: Solve for x
    x = 3,859,195.22/2,014.79
  6. Step 6: Final answer
    x = 1,915.43

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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.