Home / 1,307.42-1,792.54-1,284.03

Finding the Fourth Proportional to 1,307.42, 1,792.54 and 1,284.03

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Solution

The fourth proportional to 1,307.42, 1,792.54 and 1,284.03 is: 1,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307.42 : 1,792.54 = 1,284.03 : x
  2. Step 2: Convert to fraction form
    1,307.42/1,792.54 = 1,284.03/x
  3. Step 3: Cross multiply
    1,307.42x = 1,792.54 × 1,284.03
  4. Step 4: Simplify right side
    1,307.42x = 2,301,675.14
  5. Step 5: Solve for x
    x = 2,301,675.14/1,307.42
  6. Step 6: Final answer
    x = 1,760.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.