Home / 1,130.04-1,675.08-1,112.63

Finding the Fourth Proportional to 1,130.04, 1,675.08 and 1,112.63

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Solution

The fourth proportional to 1,130.04, 1,675.08 and 1,112.63 is: 1,649.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.04 : 1,675.08 = 1,112.63 : x
  2. Step 2: Convert to fraction form
    1,130.04/1,675.08 = 1,112.63/x
  3. Step 3: Cross multiply
    1,130.04x = 1,675.08 × 1,112.63
  4. Step 4: Simplify right side
    1,130.04x = 1,863,735.89
  5. Step 5: Solve for x
    x = 1,863,735.89/1,130.04
  6. Step 6: Final answer
    x = 1,649.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.