Home / 1,075.20-1,483.75-609.45

Finding the Fourth Proportional to 1,075.20, 1,483.75 and 609.45

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Solution

The fourth proportional to 1,075.20, 1,483.75 and 609.45 is: 841.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.20 : 1,483.75 = 609.45 : x
  2. Step 2: Convert to fraction form
    1,075.20/1,483.75 = 609.45/x
  3. Step 3: Cross multiply
    1,075.20x = 1,483.75 × 609.45
  4. Step 4: Simplify right side
    1,075.20x = 904,271.44
  5. Step 5: Solve for x
    x = 904,271.44/1,075.20
  6. Step 6: Final answer
    x = 841.03

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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.