Home / 1,503.03-2,075.25-1,222.84

Finding the Fourth Proportional to 1,503.03, 2,075.25 and 1,222.84

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Solution

The fourth proportional to 1,503.03, 2,075.25 and 1,222.84 is: 1,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.03 : 2,075.25 = 1,222.84 : x
  2. Step 2: Convert to fraction form
    1,503.03/2,075.25 = 1,222.84/x
  3. Step 3: Cross multiply
    1,503.03x = 2,075.25 × 1,222.84
  4. Step 4: Simplify right side
    1,503.03x = 2,537,698.71
  5. Step 5: Solve for x
    x = 2,537,698.71/1,503.03
  6. Step 6: Final answer
    x = 1,688.39

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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.