Home / 1,504.80-2,075.46-1,007.28

Finding the Fourth Proportional to 1,504.80, 2,075.46 and 1,007.28

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Solution

The fourth proportional to 1,504.80, 2,075.46 and 1,007.28 is: 1,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504.80 : 2,075.46 = 1,007.28 : x
  2. Step 2: Convert to fraction form
    1,504.80/2,075.46 = 1,007.28/x
  3. Step 3: Cross multiply
    1,504.80x = 2,075.46 × 1,007.28
  4. Step 4: Simplify right side
    1,504.80x = 2,090,569.35
  5. Step 5: Solve for x
    x = 2,090,569.35/1,504.80
  6. Step 6: Final answer
    x = 1,389.27

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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.