Home / 1,533.37-2,115.73-973.18

Finding the Fourth Proportional to 1,533.37, 2,115.73 and 973.18

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Solution

The fourth proportional to 1,533.37, 2,115.73 and 973.18 is: 1,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.37 : 2,115.73 = 973.18 : x
  2. Step 2: Convert to fraction form
    1,533.37/2,115.73 = 973.18/x
  3. Step 3: Cross multiply
    1,533.37x = 2,115.73 × 973.18
  4. Step 4: Simplify right side
    1,533.37x = 2,058,986.12
  5. Step 5: Solve for x
    x = 2,058,986.12/1,533.37
  6. Step 6: Final answer
    x = 1,342.78

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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.