Home / 1,505.55-2,075.61-1,113.51

Finding the Fourth Proportional to 1,505.55, 2,075.61 and 1,113.51

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Solution

The fourth proportional to 1,505.55, 2,075.61 and 1,113.51 is: 1,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.55 : 2,075.61 = 1,113.51 : x
  2. Step 2: Convert to fraction form
    1,505.55/2,075.61 = 1,113.51/x
  3. Step 3: Cross multiply
    1,505.55x = 2,075.61 × 1,113.51
  4. Step 4: Simplify right side
    1,505.55x = 2,311,206.92
  5. Step 5: Solve for x
    x = 2,311,206.92/1,505.55
  6. Step 6: Final answer
    x = 1,535.12

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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.