Home / 3,075.02-4,242.32-1,730.32

Finding the Fourth Proportional to 3,075.02, 4,242.32 and 1,730.32

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Solution

The fourth proportional to 3,075.02, 4,242.32 and 1,730.32 is: 2,387.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.02 : 4,242.32 = 1,730.32 : x
  2. Step 2: Convert to fraction form
    3,075.02/4,242.32 = 1,730.32/x
  3. Step 3: Cross multiply
    3,075.02x = 4,242.32 × 1,730.32
  4. Step 4: Simplify right side
    3,075.02x = 7,340,571.14
  5. Step 5: Solve for x
    x = 7,340,571.14/3,075.02
  6. Step 6: Final answer
    x = 2,387.16

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1.5x scale

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.