Home / 7,089.12-9,784.40-5,075.46

Finding the Fourth Proportional to 7,089.12, 9,784.40 and 5,075.46

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Solution

The fourth proportional to 7,089.12, 9,784.40 and 5,075.46 is: 7,005.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.12 : 9,784.40 = 5,075.46 : x
  2. Step 2: Convert to fraction form
    7,089.12/9,784.40 = 5,075.46/x
  3. Step 3: Cross multiply
    7,089.12x = 9,784.40 × 5,075.46
  4. Step 4: Simplify right side
    7,089.12x = 49,660,305.45
  5. Step 5: Solve for x
    x = 49,660,305.45/7,089.12
  6. Step 6: Final answer
    x = 7,005.14

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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.