Home / 2,075.58-2,864.79-1,289.16

Finding the Fourth Proportional to 2,075.58, 2,864.79 and 1,289.16

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Solution

The fourth proportional to 2,075.58, 2,864.79 and 1,289.16 is: 1,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,075.58 : 2,864.79 = 1,289.16 : x
  2. Step 2: Convert to fraction form
    2,075.58/2,864.79 = 1,289.16/x
  3. Step 3: Cross multiply
    2,075.58x = 2,864.79 × 1,289.16
  4. Step 4: Simplify right side
    2,075.58x = 3,693,172.68
  5. Step 5: Solve for x
    x = 3,693,172.68/2,075.58
  6. Step 6: Final answer
    x = 1,779.34

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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.