Home / 1,347.04-2,020.60-1,130.80

Finding the Fourth Proportional to 1,347.04, 2,020.60 and 1,130.80

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Solution

The fourth proportional to 1,347.04, 2,020.60 and 1,130.80 is: 1,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.04 : 2,020.60 = 1,130.80 : x
  2. Step 2: Convert to fraction form
    1,347.04/2,020.60 = 1,130.80/x
  3. Step 3: Cross multiply
    1,347.04x = 2,020.60 × 1,130.80
  4. Step 4: Simplify right side
    1,347.04x = 2,284,894.48
  5. Step 5: Solve for x
    x = 2,284,894.48/1,347.04
  6. Step 6: Final answer
    x = 1,696.23

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1.5x scale

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.