Home / 1,075.04-1,603.12-1,015.76

Finding the Fourth Proportional to 1,075.04, 1,603.12 and 1,015.76

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Solution

The fourth proportional to 1,075.04, 1,603.12 and 1,015.76 is: 1,514.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.04 : 1,603.12 = 1,015.76 : x
  2. Step 2: Convert to fraction form
    1,075.04/1,603.12 = 1,015.76/x
  3. Step 3: Cross multiply
    1,075.04x = 1,603.12 × 1,015.76
  4. Step 4: Simplify right side
    1,075.04x = 1,628,385.17
  5. Step 5: Solve for x
    x = 1,628,385.17/1,075.04
  6. Step 6: Final answer
    x = 1,514.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.